diff --git a/docs/source/pythonapi/energy_groups.rst b/docs/source/pythonapi/energy_groups.rst
new file mode 100644
index 000000000..28ca6f3fe
--- /dev/null
+++ b/docs/source/pythonapi/energy_groups.rst
@@ -0,0 +1,8 @@
+.. _pythonapi_energy_groups:
+
+=============
+Energy Groups
+=============
+
+.. automodule:: openmc.mgxs.groups
+ :members:
diff --git a/docs/source/pythonapi/examples/multi-group-cross-sections.ipynb b/docs/source/pythonapi/examples/multi-group-cross-sections.ipynb
index fedf7ea95..e66dd4764 100644
--- a/docs/source/pythonapi/examples/multi-group-cross-sections.ipynb
+++ b/docs/source/pythonapi/examples/multi-group-cross-sections.ipynb
@@ -373,27 +373,29 @@
{
"data": {
"text/plain": [
- "{'flux': Tally\n",
- " \tID =\t10003\n",
- " \tName =\t\n",
- " \tFilters =\t\n",
- " \t\tcell\t[1]\n",
- " \t\tenergy\t[ 0.00000000e+00 5.80000000e-08 1.40000000e-07 2.80000000e-07\n",
- " 6.25000000e-07 4.00000000e-06 5.53000000e-03 8.21000000e-01\n",
- " 2.00000000e+01]\n",
- " \tNuclides =\ttotal \n",
- " \tScores =\t['flux']\n",
- " \tEstimator =\ttracklength, 'nu-fission': Tally\n",
- " \tID =\t10004\n",
- " \tName =\t\n",
- " \tFilters =\t\n",
- " \t\tcell\t[1]\n",
- " \t\tenergy\t[ 0.00000000e+00 5.80000000e-08 1.40000000e-07 2.80000000e-07\n",
- " 6.25000000e-07 4.00000000e-06 5.53000000e-03 8.21000000e-01\n",
- " 2.00000000e+01]\n",
- " \tNuclides =\ttotal \n",
- " \tScores =\t['nu-fission']\n",
- " \tEstimator =\ttracklength}"
+ "OrderedDict([('flux', Tally\n",
+ "\tID =\t10003\n",
+ "\tName =\t\n",
+ "\tFilters =\t\n",
+ " \t\tcell\t[1]\n",
+ " \t\tenergy\t[ 0.00000000e+00 5.80000000e-08 1.40000000e-07 2.80000000e-07\n",
+ " 6.25000000e-07 4.00000000e-06 5.53000000e-03 8.21000000e-01\n",
+ " 2.00000000e+01]\n",
+ "\tNuclides =\ttotal \n",
+ "\tScores =\t['flux']\n",
+ "\tEstimator =\ttracklength\n",
+ "), ('nu-fission', Tally\n",
+ "\tID =\t10004\n",
+ "\tName =\t\n",
+ "\tFilters =\t\n",
+ " \t\tcell\t[1]\n",
+ " \t\tenergy\t[ 0.00000000e+00 5.80000000e-08 1.40000000e-07 2.80000000e-07\n",
+ " 6.25000000e-07 4.00000000e-06 5.53000000e-03 8.21000000e-01\n",
+ " 2.00000000e+01]\n",
+ "\tNuclides =\ttotal \n",
+ "\tScores =\t['nu-fission']\n",
+ "\tEstimator =\ttracklength\n",
+ ")])"
]
},
"execution_count": 13,
@@ -478,7 +480,7 @@
" License: http://mit-crpg.github.io/openmc/license.html\n",
" Version: 0.7.0\n",
" Git SHA1: 23535afa1c69644bb299bde18a094c3b99d53ae0\n",
- " Date/Time: 2015-10-10 17:36:39\n",
+ " Date/Time: 2015-10-11 11:02:44\n",
" MPI Processes: 1\n",
"\n",
" ===========================================================================\n",
@@ -563,20 +565,20 @@
"\n",
" =======================> TIMING STATISTICS <=======================\n",
"\n",
- " Total time for initialization = 6.3500E-01 seconds\n",
- " Reading cross sections = 1.4900E-01 seconds\n",
- " Total time in simulation = 1.5217E+01 seconds\n",
- " Time in transport only = 1.5201E+01 seconds\n",
- " Time in inactive batches = 2.2480E+00 seconds\n",
- " Time in active batches = 1.2969E+01 seconds\n",
- " Time synchronizing fission bank = 2.0000E-03 seconds\n",
- " Sampling source sites = 2.0000E-03 seconds\n",
+ " Total time for initialization = 3.9700E-01 seconds\n",
+ " Reading cross sections = 8.9000E-02 seconds\n",
+ " Total time in simulation = 1.2140E+01 seconds\n",
+ " Time in transport only = 1.2131E+01 seconds\n",
+ " Time in inactive batches = 1.8560E+00 seconds\n",
+ " Time in active batches = 1.0284E+01 seconds\n",
+ " Time synchronizing fission bank = 1.0000E-03 seconds\n",
+ " Sampling source sites = 0.0000E+00 seconds\n",
" SEND/RECV source sites = 0.0000E+00 seconds\n",
" Time accumulating tallies = 0.0000E+00 seconds\n",
" Total time for finalization = 2.0000E-03 seconds\n",
- " Total time elapsed = 1.5866E+01 seconds\n",
- " Calculation Rate (inactive) = 11121.0 neutrons/second\n",
- " Calculation Rate (active) = 7710.69 neutrons/second\n",
+ " Total time elapsed = 1.2547E+01 seconds\n",
+ " Calculation Rate (inactive) = 13469.8 neutrons/second\n",
+ " Calculation Rate (active) = 9723.84 neutrons/second\n",
"\n",
" ============================> RESULTS <============================\n",
"\n",
@@ -1723,48 +1725,39 @@
" | 10002 | \n",
" 1 | \n",
" 1 | \n",
- " O-16 | \n",
- " 1.560098 | \n",
- " 0.017801 | \n",
+ " H-1 | \n",
+ " 0.234877 | \n",
+ " 0.010096 | \n",
" \n",
" \n",
" | 127 | \n",
" 10002 | \n",
" 1 | \n",
" 1 | \n",
- " H-1 | \n",
- " 0.234877 | \n",
- " 0.010096 | \n",
+ " O-16 | \n",
+ " 1.560098 | \n",
+ " 0.017801 | \n",
"
\n",
" \n",
" | 124 | \n",
" 10002 | \n",
" 1 | \n",
" 2 | \n",
- " O-16 | \n",
- " 0.288236 | \n",
- " 0.004397 | \n",
- "
\n",
- " \n",
- " | 125 | \n",
- " 10002 | \n",
- " 1 | \n",
- " 2 | \n",
" H-1 | \n",
" 1.587815 | \n",
" 0.007847 | \n",
"
\n",
" \n",
- " | 122 | \n",
+ " 125 | \n",
" 10002 | \n",
" 1 | \n",
- " 3 | \n",
+ " 2 | \n",
" O-16 | \n",
- " 0.000000 | \n",
- " 0.000000 | \n",
+ " 0.288236 | \n",
+ " 0.004397 | \n",
"
\n",
" \n",
- " | 123 | \n",
+ " 122 | \n",
" 10002 | \n",
" 1 | \n",
" 3 | \n",
@@ -1773,11 +1766,20 @@
" 0.000513 | \n",
"
\n",
" \n",
+ " | 123 | \n",
+ " 10002 | \n",
+ " 1 | \n",
+ " 3 | \n",
+ " O-16 | \n",
+ " 0.000000 | \n",
+ " 0.000000 | \n",
+ "
\n",
+ " \n",
" | 120 | \n",
" 10002 | \n",
" 1 | \n",
" 4 | \n",
- " O-16 | \n",
+ " H-1 | \n",
" 0.000000 | \n",
" 0.000000 | \n",
"
\n",
@@ -1786,7 +1788,7 @@
" 10002 | \n",
" 1 | \n",
" 4 | \n",
- " H-1 | \n",
+ " O-16 | \n",
" 0.000000 | \n",
" 0.000000 | \n",
" \n",
@@ -1795,7 +1797,7 @@
" 10002 | \n",
" 1 | \n",
" 5 | \n",
- " O-16 | \n",
+ " H-1 | \n",
" 0.000000 | \n",
" 0.000000 | \n",
" \n",
@@ -1804,7 +1806,7 @@
" 10002 | \n",
" 1 | \n",
" 5 | \n",
- " H-1 | \n",
+ " O-16 | \n",
" 0.000000 | \n",
" 0.000000 | \n",
" \n",
@@ -1814,16 +1816,16 @@
],
"text/plain": [
" cell group in group out nuclide mean std. dev.\n",
- "126 10002 1 1 O-16 1.560098 0.017801\n",
- "127 10002 1 1 H-1 0.234877 0.010096\n",
- "124 10002 1 2 O-16 0.288236 0.004397\n",
- "125 10002 1 2 H-1 1.587815 0.007847\n",
- "122 10002 1 3 O-16 0.000000 0.000000\n",
- "123 10002 1 3 H-1 0.010122 0.000513\n",
- "120 10002 1 4 O-16 0.000000 0.000000\n",
- "121 10002 1 4 H-1 0.000000 0.000000\n",
- "118 10002 1 5 O-16 0.000000 0.000000\n",
- "119 10002 1 5 H-1 0.000000 0.000000"
+ "126 10002 1 1 H-1 0.234877 0.010096\n",
+ "127 10002 1 1 O-16 1.560098 0.017801\n",
+ "124 10002 1 2 H-1 1.587815 0.007847\n",
+ "125 10002 1 2 O-16 0.288236 0.004397\n",
+ "122 10002 1 3 H-1 0.010122 0.000513\n",
+ "123 10002 1 3 O-16 0.000000 0.000000\n",
+ "120 10002 1 4 H-1 0.000000 0.000000\n",
+ "121 10002 1 4 O-16 0.000000 0.000000\n",
+ "118 10002 1 5 H-1 0.000000 0.000000\n",
+ "119 10002 1 5 O-16 0.000000 0.000000"
]
},
"execution_count": 41,
@@ -1883,7 +1885,7 @@
"data": {
"image/png": "iVBORw0KGgoAAAANSUhEUgAAAWYAAADDCAYAAACxgLv/AAAABHNCSVQICAgIfAhkiAAAAAlwSFlz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\ned7lsJ91IAAAAABJRU5ErkJggg==\n",
"text/plain": [
- ""
+ ""
]
},
"metadata": {},
@@ -1949,6 +1951,11 @@
"\tReaction Type =\ttransport\n",
"\tDomain Type =\tcell\n",
"\tDomain ID =\t10000\n",
+ "\tNuclide =\tU-235\n",
+ "\tCross Sections [cm^-1]:\n",
+ " Group 1 [6.25e-07 - 20.0 MeV]:\t7.91e-03 +/- 1.22e+00%\n",
+ " Group 2 [0.0 - 6.25e-07 MeV]:\t1.82e-01 +/- 4.98e-01%\n",
+ "\n",
"\tNuclide =\tU-238\n",
"\tCross Sections [cm^-1]:\n",
" Group 1 [6.25e-07 - 20.0 MeV]:\t2.17e-01 +/- 4.04e-01%\n",
@@ -1959,11 +1966,6 @@
" Group 1 [6.25e-07 - 20.0 MeV]:\t1.45e-01 +/- 4.10e-01%\n",
" Group 2 [0.0 - 6.25e-07 MeV]:\t1.75e-01 +/- 6.46e-01%\n",
"\n",
- "\tNuclide =\tU-235\n",
- "\tCross Sections [cm^-1]:\n",
- " Group 1 [6.25e-07 - 20.0 MeV]:\t7.91e-03 +/- 1.22e+00%\n",
- " Group 2 [0.0 - 6.25e-07 MeV]:\t1.82e-01 +/- 4.98e-01%\n",
- "\n",
"\n",
"\n"
]
@@ -2000,12 +2002,20 @@
" 3 | \n",
" 10000 | \n",
" 1 | \n",
+ " U-235 | \n",
+ " 21.095256 | \n",
+ " 0.257787 | \n",
+ " \n",
+ " \n",
+ " | 4 | \n",
+ " 10000 | \n",
+ " 1 | \n",
" U-238 | \n",
" 9.589323 | \n",
" 0.038756 | \n",
"
\n",
" \n",
- " | 4 | \n",
+ " 5 | \n",
" 10000 | \n",
" 1 | \n",
" O-16 | \n",
@@ -2013,15 +2023,15 @@
" 0.012939 | \n",
"
\n",
" \n",
- " | 5 | \n",
+ " 0 | \n",
" 10000 | \n",
- " 1 | \n",
+ " 2 | \n",
" U-235 | \n",
- " 21.095256 | \n",
- " 0.257787 | \n",
+ " 485.513530 | \n",
+ " 2.418761 | \n",
"
\n",
" \n",
- " | 0 | \n",
+ " 1 | \n",
" 10000 | \n",
" 2 | \n",
" U-238 | \n",
@@ -2029,33 +2039,25 @@
" 0.065428 | \n",
"
\n",
" \n",
- " | 1 | \n",
+ " 2 | \n",
" 10000 | \n",
" 2 | \n",
" O-16 | \n",
" 3.800027 | \n",
" 0.024538 | \n",
"
\n",
- " \n",
- " | 2 | \n",
- " 10000 | \n",
- " 2 | \n",
- " U-235 | \n",
- " 485.513530 | \n",
- " 2.418761 | \n",
- "
\n",
" \n",
"\n",
""
],
"text/plain": [
" cell group in nuclide mean std. dev.\n",
- "3 10000 1 U-238 9.589323 0.038756\n",
- "4 10000 1 O-16 3.159101 0.012939\n",
- "5 10000 1 U-235 21.095256 0.257787\n",
- "0 10000 2 U-238 11.178844 0.065428\n",
- "1 10000 2 O-16 3.800027 0.024538\n",
- "2 10000 2 U-235 485.513530 2.418761"
+ "3 10000 1 U-235 21.095256 0.257787\n",
+ "4 10000 1 U-238 9.589323 0.038756\n",
+ "5 10000 1 O-16 3.159101 0.012939\n",
+ "0 10000 2 U-235 485.513530 2.418761\n",
+ "1 10000 2 U-238 11.178844 0.065428\n",
+ "2 10000 2 O-16 3.800027 0.024538"
]
},
"execution_count": 46,
@@ -2192,8 +2194,8 @@
"output_type": "stream",
"text": [
"openmc keff = 1.227616\n",
- "openmoc keff = -1501548191911247872.000000\n",
- "bias [pcm]: -150154819191124787200000.0\n"
+ "openmoc keff = 1.225325\n",
+ "bias [pcm]: -229.1\n"
]
}
],
@@ -2286,8 +2288,8 @@
"output_type": "stream",
"text": [
"openmc keff = 1.227616\n",
- "openmoc keff = -1678021319997784064.000000\n",
- "bias [pcm]: -167802131999778406400000.0\n"
+ "openmoc keff = 1.227096\n",
+ "bias [pcm]: -52.0\n"
]
}
],
diff --git a/docs/source/pythonapi/index.rst b/docs/source/pythonapi/index.rst
index 09fbb3ac9..465ea8923 100644
--- a/docs/source/pythonapi/index.rst
+++ b/docs/source/pythonapi/index.rst
@@ -57,6 +57,15 @@ on a given module or class.
summary
tallies
+**Multi-Group Cross Section Generation**
+
+.. toctree::
+ :maxdepth: 1
+
+ mgxs
+ energy_groups
+ mgxs_library
+
**Example Jupyter Notebooks:**
.. toctree::
diff --git a/docs/source/pythonapi/mgxs.rst b/docs/source/pythonapi/mgxs.rst
new file mode 100644
index 000000000..04e2a99de
--- /dev/null
+++ b/docs/source/pythonapi/mgxs.rst
@@ -0,0 +1,8 @@
+.. _pythonapi_mgxs:
+
+==========================
+Multi-Group Cross Sections
+==========================
+
+.. automodule:: openmc.mgxs.mgxs
+ :members: MGXS
diff --git a/docs/source/pythonapi/mgxs_library.rst b/docs/source/pythonapi/mgxs_library.rst
new file mode 100644
index 000000000..8ac545700
--- /dev/null
+++ b/docs/source/pythonapi/mgxs_library.rst
@@ -0,0 +1,8 @@
+.. _pythonapi_mgxs_library:
+
+============
+MGXS Library
+============
+
+.. automodule:: openmc.mgxs.library
+ :members:
diff --git a/docs/source/pythonapi/opencg_compatible.rst b/docs/source/pythonapi/opencg_compatible.rst
index c807e19cc..c8ba82e8c 100644
--- a/docs/source/pythonapi/opencg_compatible.rst
+++ b/docs/source/pythonapi/opencg_compatible.rst
@@ -1,8 +1,8 @@
-.. _pythonapi_opencg_compatible:
+.. _pythonapi_openmc_mgxs:
-====================
-OpenCG Compatibility
-====================
+==========================
+Multi-Group Cross Sections
+==========================
-.. automodule:: openmc.opencg_compatible
+.. automodule:: openmc.mgxs.mgxs
:members:
diff --git a/openmc/mgxs/mgxs.py b/openmc/mgxs/mgxs.py
index 3a72b4232..79f86b080 100644
--- a/openmc/mgxs/mgxs.py
+++ b/openmc/mgxs/mgxs.py
@@ -252,7 +252,7 @@ class MGXS(object):
-------
MGXS
A subclass of the abstract MGXS class for the multi-group cross
- section type requeted by the user
+ section type requested by the user
"""
@@ -322,7 +322,7 @@ class MGXS(object):
The atomic number density (atom/b-cm) for the nuclide of interest
Raises
- ------
+ -------
ValueError
When the density is requested for a nuclide which is not found in
the spatial domain.